globalization in vb.net

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VB

hello all i have a website in vb.net.i want to make my website globalized for this i have a webpage Default.aspx in this page i take a dropdown in which there is several languages when i select the language from the dorpdown and clicking on the button the text are converted into the selected language.to acheive this i write the code in .vb file is as follows

Imports System.Resources
Imports System.Globalization
Imports System.Threading

Partial Class _Default
    Inherits System.Web.UI.Page
    Private Sub Page_Load(ByVal sender As System.Object, _
             ByVal e As System.EventArgs) Handles MyBase.Load

        'Put user code to initialize the page here
        If Not Page.IsPostBack Then
            drpLanguages.Items.Add(New  _
              System.Web.UI.WebControls.ListItem("English", "en-NZ"))

            Dim sLang As String = "en-NZ"
            SetCulture(sLang)
        End If
    End Sub
    Private Sub SetCulture(ByVal sLang As String)
        Dim gStrings As String
        Thread.CurrentThread.CurrentUICulture = New CultureInfo(sLang)
        Thread.CurrentThread.CurrentCulture = _
                 CultureInfo.CreateSpecificCulture(sLang)
        p1.InnerHtml = gStrings.GetString("p1")
        btnlang.Text = gString.GetString("btnlang")

    End Sub
   
  
    Protected Sub btnlang_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnlang.Click
        Dim sLang As String = drpLanguages.SelectedItem.Value
        SetCulture(sLang)

    End Sub
End Class

and also add a .vb file named as Webform1 and the code is as folows----

Imports Microsoft.VisualBasic
Imports System.Resources
Imports System.Globalization
Imports System.Threading


Public Class Webform1
    Protected gStrings As New  _
ResourceManager("SatelliteAssemblies.Default", _
GetType(Webform1).Assembly)
End Class

but the problem is when i run this age the error is
""name gStrings is not declare."

please help me out what should i do to overcome from this problem.

should i made and initialization on page_load .

i make all the resourse file.

thanks and regard
subiya ahsan